Finding the Fourth Proportional to 9,528.51, 14,287.89 and 3,980.34

Step by Step Solution

1. Step 1: Write the proportion equation
   9,528.51 : 14,287.89 = 3,980.34 : x
2. Step 2: Convert to fraction form
   9,528.51/14,287.89 = 3,980.34/x
3. Step 3: Cross multiply
   9,528.51x = 14,287.89 × 3,980.34
4. Step 4: Simplify right side
   9,528.51x = 56,870,660.08
5. Step 5: Solve for x
   x = 56,870,660.08/9,528.51
6. Step 6: Final answer
   x = 5,968.47